I don't think it was ever meant to be a 1/8th controller, plus it's footprint is about half the size of the monster pro. I think I read something quite a while ago saying that quark was going to make a proper 1/8th esc after the 1/10th plasma's were released. I haven't heard much since then though.
It looks good to me, i like the interface box that comes with it! Hopefully it will work well on 6s, with no heat issues. 120amps should be good for most aplications, on 6s that is alot of power, over 3hp.